West Babylon, New York has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 46 °F (low) to 61.6 °F (high). Annual precipitation averages 46.5 Inches. West Babylon is located in USDA Plant Hardiness Zone 7b. The growing season typically runs from the last frost around Apr. 1 - Apr. 10 through the first frost around Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 25.4 °F | 39.4 °F | 3.8 in. |
| February | 26.5 °F | 41.5 °F | 3.18 in. |
| March | 32.6 °F | 48.0 °F | 4.52 in. |
| April | 42.0 °F | 59.2 °F | 4.16 in. |
| May | 51.5 °F | 68.9 °F | 3.38 in. |
| June | 61.4 °F | 77.9 °F | 3.88 in. |
| July | 67.4 °F | 83.7 °F | 3.2 in. |
| August | 66.4 °F | 82.1 °F | 4.06 in. |
| September | 59.7 °F | 75.6 °F | 3.74 in. |
| October | 48.8 °F | 64.3 °F | 4.63 in. |
| November | 38.9 °F | 53.9 °F | 3.47 in. |
| December | 31.5 °F | 44.8 °F | 4.51 in. |
| Annual | 46 °F | 61.6 °F | 46.53 in. |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 75-100 Days |
| Plant Hardiness Zone | Zone 7b : 5°F to 10°F |
| Plant Hardiness Zone - 2012 | Zone 7a : 0°F to 5°F |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |